Automatic valve for compressed-fluid starting mechanism.



F. E. TEN EYCK. AUTOMATIC vALvE FoII COMPRESSED FLUID STARTING MEcHANIs'I/I.

APPLICATION FILED MAY/12,1915.

Patented May 23, 1916.

2 SHEETS-SHEET l.

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Tuned lllll/E/I/TUH A ITRNEYS F. E. TEN ,EYCK. AUTOMATIC VALVE FOR COMPRESSED FLUID STARTING MECHANISKM.'

2 SHEETS-SHEET 2.

Ptented May 23, 1916.

APPLICATION FILED MAY I2. I9I5.

ATTORNEYS v improved automatic air inlet valves.

UNITED STATES PATENT OFFICE.

FRANK E. TEN EYCK, QF AUBURN, NEW YORK, ASSIGNOR TO AIR DEVICE MANO'FAC- TUBING- COMPANY, 0F CHICAGO, ILLINOIS, CORPORATION 0F MAINE.

` AUTOMATIC V-ALVEFOR COMPRESSED-FLUID STARTING MECHANISM.

Specification of Letters Patent.

Patented Maty 23, 1916.k

Appiication sied May 12, 1915. serial No. 27,513.

To all whom t may concern:

Be it known that I, FRANK E. TEiI EYCK, a citizen of the United States, residing at Auburn,in the county of Cayuga and State of New York, have inventedl certain new and useful .Improvements in Automatic Valves 'for Compressed-Fluid Starting Mechanism; and I' do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists inthe novel features hereinafter described, reference being had to the accompanying drawing which illustrates several embodiments of my invention, selected by me for p urposes of illustration, and the said'invention 1 s f ully disclsed in the following description and claims. l U

Referring to the said draw1ng, Figure 1 represents a side elevation of an internal combustion engine and compressed Huid starting mechanism therefor, each cylinder of the engine being provided with one ofFmy 1g. 2 is a vertical sectional view of one o f the valves. Fig. 3 is a similar view showing a slightly'modiied form of valve. Fig. 4: is a similar view showing a further modification. Fig. 5 is a detail of the lower part of the valve shown in Fig. 2, illustrating a slightly modified construction.

My present invention relates to an automatic inlet valve adapted particularly for use in connection with a. compressed air starting system for internal combustion engines, and in order to make the construction and operation of my improved valve clear, I have shown, in Fig. 1, one form of apparatus for starting an internal combustion engine by means of compressed fluid in which my improved valve is used, the general features of the apparatus so disclosed in Fig. 1 forming the subject matter of my former application for Letters Patent of the United States, led on or about April 2Q, 1915, and given Serial No. 22,551, and .being therein particularly claimed.

Referring briefly to said Fig. 1, .l represents the internalcombustion engine provided witli cylinders 2, 3, l, and 5. 9.rep resents a pump or compressor operatively connected with the engine shaft and capable of being actuated by the engine when the passes through a pipe 18 and through a controlling valve 60, mounted on a steering head and controlled by a hand lever 72, adjacent to theA steering wheel, the compressed air passing from 4the valve 60 through a pipe 80 to a storage tank, indicated at 19. The compressed air from the tank may be transmitted by the proper operation of the valve through a starter pipe line 38 to a distributer 22 mounted on the pump and by connections with the engine, from which it passes by a series of distributing pipes 2a, 3, L, and 5, to one of'my improved automatic inlet valves 93. In the construction shown in Fig. 1, the connection between each of these inlet valves and the adjacent engine cylinder is through the spark plug aperture which is provided with a fitting 91 to receive a spark plug 90, and also the inlet valve 93, and 1n this instance the said fitting is provided with a threaded portion 91a, see Fig. 2, upon which the inlet valve is screwed. In the form of myy invention shown in Fig. 2,

this inlet valve comprises a cylindrical body latter is running, to compress air which having between its ends a reduced central aperture 93a communicating with the cylindrical chamber 93b at the upper end of the cylindrical body, and a chamber 93c at the lower end thereof, and a 'valve seat 94 is provided at the lower end of this neck or reduced aperture to receive a conical valve 95 formed upon the lower end of or secured to a valve stem which is provided with a. guiding portion 95a having a-sliding engagement with the reduced passage 93a, the valve stem being reduced between said guiding portion and the vvalve 95, so as to form an annular passage surrounding the valvestem within the passage 93a, at which point the valve casing or body is provided with an inlet aperture 104 into which one of the distributing pipes for the compressed fluid, as

2a, 3a, 4a, etc., is attached. The upper part sion 95b of the valve stem. On the exterior of the reduced body portion 96a, I provide a sliding piston' ring, 102, and between the piston ring and the piston head 96, I providea ring of compressible packing 103. Within' the chamber 93b I also provide a spring 101 which bears at one end against the bottom of the chamber and at its upper end against the piston ring 102 so that this spring performs two functions, to wit, that of holding the valve95 firmly up against its seat, and also that of compressing the packing 103 between the ring 102 and the piston head 96.

The ipper end of the valve body 1s vclosed and provided with a suitable inlet aperture, and in this instance,'I have shown it provided with a cap 98 screwed onto the valve body and provided with a passage 99 extending transversely through the sameand througha threaded connection 90? at either side of the cap, and the passage 99 .is conythe accumulated nected by a vertical passage 100 l chamber 93b directly above the piston head 96. n l Y The upper end of the valve is. adapted to.

be connected with the source@ of compressed fluid at the same time that compressed fluid is admitted tothe inlet aperture 104 so that pressure will ii'st'be `exerted on the head of the piston 96 and caused to open the valve 95, thereby admiti ting the compressed fluid entering at the aperture 104 to the chamber. 93c and thence to the cylinder ofthe engine. As indicated in Fig. 1, the several inlet valves have their threaded extensions 90a connected by pipes 105,- and withlaby pass indicated at 107 which leadsto the controlling valve 60 or to the starter pipe line 38 either directly or throughsaid controlling valve, so that when air is admitted to the starterpipe line 38,

it/ will also pass throughthe by lpass 107, vand thence to the piston cylinder of eachl of the 4automatic valves, so as to open the valves and permit the flow of compressed fluid thereto under the control ofthe distributer, as fully set forth in my prior application above referred to. In this' form of the valve, it will be noted that the movement of the valve to closev is in an outward direction so thatpressure within the cylinder tendsto close the valve and the pressure in the by pass leading to the upperend of Athe valve overcomes the resistance of the valve at a time spring 101 in opening the p within the cylwhen there is no pressure inder. v

In Fig. 3 I have shown a slight modication of my improved valve. In `this instance the valve body is formed in two parts 35 and 36 preferably screwed together, al-A though the body might -be formed in a single piece, if preferred The lower end of the valve body is provided with a valve seat 37 vwhich receives the valve 34 on the lower end of a valve stem 34a which is of smaller diameter than the chamber within the lower part of the valve casing, and this with the -vided with an inlet 90b cylinder ment, and in Fig. 5 I

part of the valve casing is provided with an inlet 104a to receive a pipe conveying fluid pressure to the cylinder. The upper end of the lower portion of the valve body is provided with means stem`34a, in this instance a 'threaded sleeve 39 screwed into the part 36, and the upper end of the valve stem is provided with a piston head .40, detachably secured thereto, preferably by screw threaded connections, and having a' reduced body portion 41, piston ring 42, and packing 43. The upper end of the cylindrical part 35 of the valve b ody is .closed in this instance by a plug 44 and a coil lspring 45- is interposed between the plug 44 and the piston ring 42, thereby holding the valve 34 on its seat and also serving to compress the packing 43. l:The

upper portion of the valve body is prohav-ing a threaded extension 90c to which a by pass from the air inlet pipe can be connected for the purpose of raising the piston 40 against the compression of the spring 45 to open the vvalve 34 and admit fluid pressure to the cylinder. In thisform of the valve the valve proper opens in a direction away from the cylinder and the spring 45 must be of suilicient tension to hold the valve closed under conditions of normal pressure within the cylinder.

- Fig. 4 represents a slightly modified'forni of the valve shown in Fig. 3 in which the lower b ody portion 36a is provided with a recess 36b communicating by short'passage 36c with the interior of the valve casing, and adapted to receive a threaded` plug valve 33 provided with 5a conical valve portion to close the passage 36c and having a longitudinal passage32 extending to areduced por-4 tion o f the valve plug at its inner end and communicating with a funnel-shaped recess 31 at the outer end of the valve plug. The

object to permit the admission, when desired, of liquid fuel for priming purposes and this can be accomplished readily by slightly unscrewing the valve plug 33 and pouring a small quantity of the liquid fuel in the aperture 31 so that it will be carried into the when the valve 34 is open. The

of this auxiliary passage and plug is other features of construction shown in this ligure, are identical with those shown in Fig. 3.

The form of valve shown in Fig. 2 may also be provided with a priming' arrangeportion of the valve, here designated at 93d, provided with'an extension-36d having a recess therein, communicating by Ia passage 36e with the interior of the valve casing, in this instance below the valve indicated vat 95. The recess in the extension 36d is provided with aplug .valve 33a having a re-v duced portion and conical valve at its inhave shown the lower ner end to close the aperture 36e and provided with a longitudinal passage 37a extending from the exterior recess 3la to the lateral surface of the reduced portion for the admission of liquid fuel.

In the forms of my improved valvehere- .in shown and described, the piston is secured to the valve stem detachably, the stem being preferably provided with threaded portions, as shown, which screw into a threaded recess in the piston body and by this means the ready assemblage of the various parts can be effected. This is convenient, in any case, but is particularly desirable where the valve proper is of greater diameter than the passage between the lower chamber of the valve casing and the piston cylinder at the upper end of the same.`

While I have shown my improved valve as having its outlet passage leading directly into one of the cylinders of the explosive engine, I do not limit myself to the use of the` valve in connection with the cylinder of the engine itself, as it might be employed in connection with the 'cylinder or cylinders of a compressed fluid motoror a combined pump and motor, by making the proper pipe connections therewith.

What I claim and desire to secure by Letters Patent is l. In a compressed air starting mechanism for internal combustion engines, an automatic inlet valve comprising a valve casing provided with a main compressed air inlet, an air outlet, and a valve interposed between said air inlet and out-let, said casing 'being also provided with a valve actuating cylinder having an auxiliary compressed air inlet separate from said main inlet, a piston in said cylinder, connected with said valve,

'and provided with a head fitting said cylinder and witha reduced portion adjacent thereto, a ring having a sliding engagement with said reduced portion, packing interposed between said piston head and said ring, and a spring engaging said ring for holdingthe valve in one position, and compressing said packing.

2. In a compressed air starting mechanism for internal combustion engines, an automatic inlet valve comprising a valve cas- -ing provided with a main compressed air inlet, an air outlet, and a valve interposed compressing said packing, and a prlmingdevice connected with said valve casing between the said main inlet and the outlet thereof.

3. In a compressed air starting mechanism for `internal combustion engines, an

automatic inlet valve comprising a valve casing provided with a main compressed air inlet, an air outlet, a valve interposed between said air inlet and outletsaid casing being also provided with a valve actuating cylinder having an auxiliary compressed air inlet separate from the said main inlet, a piston in said cylinder, connected with said valve, and provided with a head fitting said cylinder and with a reduced portion adjacent thereto, a ring having a sliding engagement with said reduced portion, 4packing interposed between said piston head and said ring, a spring engaging said ring for holding the valve in one position, and compressing said packing, said valve casing being provided with a priming passage communieating at its inner end with the interior of the casing between the main vinlet and outlet thereof and havin@ a threaded recess at its outer end, a threaded plug for engaging said recess, said plug provided with allongitudinal liquid passage extending to a point near its inner end, and also having a valve at its inner end for closing said priming passage, 'whereby by slightly unscrew.- ing said plug liquid fuel may be introduced into said priming passage through said plug.

In testimony whereof I afix my signature in the presence of two witnesses.

FRANK E. TEN EYCK. Vitnesses: i

MATIE TDAVEY, W. C. GATES. 

